Eneloop

Pros

• As far as NiMh- Eneloop have never let me down, but there's a few comparable generics out there as well.
• Your best option for rechargeable AA / AAA are either Ikea Ladda or Eneloop
• I also keep some AA Eneloop in the kit, as I like the option to recharge (I check the voltage on those 2x a year, they are usually fine, but I replace with a fresh charged one at least once a year).
• Which makes me think that a Convoy s6/S8 is a better buy than a T6, unless you want to use Eneloop and Ladda rechargeable AAs.
• Eneloops surprised me, not because I do not know about them, but because they look one-to-one comparable with mode 3 of S21B here.

Cons

• I have a few issues with Eneloop (and generally all NiMH rechargeable batteries). ... First, the voltage is low. ... Second, they lose charge over time. ... I know Eneloop claims a low self-discharge rate, they advertise that they retain...
• The issue is that eneloops don't make C or D cells from what ive seen. You can get adapters but they are a PITA to use and really reeuce capacity. I love eneloops too btw.
• New eneloops will have very low self discharge, so low i have no trouble believing claimed numbers... But cycle them just 40-50 times and things change dramatically. Internal resistance increases *a lot*, along with self discharge. Yes,...
• Eneloops are somewhere in the middle. They are basically Li-ions with a lower performance ceiling. And despite what others may say, their self-discharge rate is not much less than Li-ion; not by enough to avoid the sort of maintenance I...
• I found the lack of a higher ramp than the 500-600 lumens to feel like I'm being left in the dark, pun intended. It just feels I keep ramping right up to max while on Eneloops and wanting to switch out to the H10s all the time.